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#include <stdio.h>
#include <stdint.h> // for fixed-width integer types
#include <stddef.h> // for size_t, ptrdiff_t
#include <limits.h> // for limits of fundamental types
#include <inttypes.h> // for PRId64 macros etc.
int main(void) {
printf("=== Fundamental integer types ===\n");
printf("char : %zu byte(s) (%zu bit) range: %d to %d\n",
sizeof(char), sizeof(char) * 8, CHAR_MIN, CHAR_MAX);
printf("short : %zu byte(s) (%zu bit) range: %d to %d\n",
sizeof(short), sizeof(short) * 8, SHRT_MIN, SHRT_MAX);
printf("int : %zu byte(s) (%zu bit) range: %d to %d\n",
sizeof(int), sizeof(int) * 8, INT_MIN, INT_MAX);
printf("long : %zu byte(s) (%zu bit) range: %ld to %ld\n",
sizeof(long), sizeof(long) * 8, LONG_MIN, LONG_MAX);
printf("long long : %zu byte(s) (%zu bit) range: %lld to %lld\n",
sizeof(long long), sizeof(long long) * 8, LLONG_MIN, LLONG_MAX);
printf("\n=== Fixed-width integer types (from <stdint.h>) ===\n");
printf("int8_t : %zu byte(s) (%zu bit) range: %" PRId8 " to %" PRId8 "\n",
sizeof(int8_t), sizeof(int8_t) * 8, INT8_MIN, INT8_MAX);
printf("int16_t : %zu byte(s) (%zu bit) range: %" PRId16 " to %" PRId16 "\n",
sizeof(int16_t), sizeof(int16_t) * 8, INT16_MIN, INT16_MAX);
printf("int32_t : %zu byte(s) (%zu bit) range: %" PRId32 " to %" PRId32 "\n",
sizeof(int32_t), sizeof(int32_t) * 8, INT32_MIN, INT32_MAX);
printf("int64_t : %zu byte(s) (%zu bit) range: %" PRId64 " to %" PRId64 "\n",
sizeof(int64_t), sizeof(int64_t) * 8, INT64_MIN, INT64_MAX);
printf("\n=== Unsigned fixed-width types ===\n");
printf("uint8_t : %zu byte(s) (%zu bit) range: 0 to %" PRIu8 "\n",
sizeof(uint8_t), sizeof(uint8_t) * 8, UINT8_MAX);
printf("uint16_t : %zu byte(s) (%zu bit) range: 0 to %" PRIu16 "\n",
sizeof(uint16_t), sizeof(uint16_t) * 8, UINT16_MAX);
printf("uint32_t : %zu byte(s) (%zu bit) range: 0 to %" PRIu32 "\n",
sizeof(uint32_t), sizeof(uint32_t) * 8, UINT32_MAX);
printf("uint64_t : %zu byte(s) (%zu bit) range: 0 to %" PRIu64 "\n",
sizeof(uint64_t), sizeof(uint64_t) * 8, UINT64_MAX);
printf("\n=== Pointer and memory-related types ===\n");
printf("void* : %zu byte(s) (%zu bit)\n",
sizeof(void*), sizeof(void*) * 8);
printf("size_t : %zu byte(s) (%zu bit) range: 0 to %zu\n",
sizeof(size_t), sizeof(size_t) * 8, (size_t)-1);
printf("ptrdiff_t : %zu byte(s) (%zu bit)\n",
sizeof(ptrdiff_t), sizeof(ptrdiff_t) * 8);
return 0;
}
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